Which is wrongly match with its specificity:-

Options

A. YAC - A type of vector
B. SNPs - Single nucleotide polymorphisms
C. Human largest gene - Dystrophin
D. Chromosome-1 - 231 gene

Answer

To determine which option is wrongly matched with its specificity, we will analyze each option step by step.

### Step-by-Step Solution:

1. **YAC (Yeast Artificial Chromosome)**:
- YACs are vectors used to clone DNA fragments in yeast cells. They are indeed a type of vector used in genetic engineering.
- **Conclusion**: This is correctly matched.

2. **SNP (Single Nucleotide Polymorphism)**:
- SNPs refer to variations at a single nucleotide position in the DNA sequence among individuals. They are common in human DNA and are important for genetic diversity.
- **Conclusion**: This is correctly matched.

3. **Human Largest Gene - Dystrophin**:
- Dystrophin is known to be the largest gene in humans, located on the X chromosome. It plays a crucial role in muscle function.
- **Conclusion**: This is correctly matched.

4. **Chromosome 1 - 231 Genes**:
- This statement claims that chromosome 1 contains 231 genes. However, chromosome 1 actually contains approximately 2,000 genes, not 231. The number 231 is incorrectly attributed to chromosome 1; it is more likely associated with chromosome Y, which has fewer genes.
- **Conclusion**: This is incorrectly matched.

### Final Answer:
The wrongly matched specificity is **Chromosome 1 - 231 Genes**.

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